[6bone] problem with ftp.netbsd.org

[Darko]

Try nslookup -q=AAAA ftp.bsd.org
You will see that there is no AAAA record for that host, therefore you
cannot use IPv6 to reach it.

Darko

On Fri, 14 Jun 2002, Ronald van der Pol wrote:

> Date: Fri, 14 Jun 2002 01:12:45 +0200
> From: Ronald van der Pol <Ronald.vanderPol@rvdp.org>
> To: 6bone@mailman.isi.edu
> Subject: [6bone] problem with ftp.netbsd.org
>
> I cannot ftp to ftp.bsd.org:
>
> spock$ ftp ftp.netbsd.org
> Connected to ftp.netbsd.org.
> <no further output>
>
> Tcpdump shows (spock is 2001:610:508:1001:260:1dff:fef6:7ff9):
>
> 00:37:02.458730 2001:610:508:1001:260:1dff:fef6:7ff9.1310 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: S [tcp sum ok] 3384697445:3384697445(0) win 57344 <mss 1440,nop,wscale 0,nop,nop,timestamp 5546340 0> (len 40, hlim 64)
> 00:37:02.764566 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21 > 2001:610:508:1001:260:1dff:fef6:7ff9.1310: S [tcp sum ok] 131386982:131386982(0) ack 3384697446 win 32768 <mss 1440,nop,wscale 0,nop,nop,timestamp 8620681 5546340> (len 40, hlim 54)
> 00:37:02.764799 2001:610:508:1001:260:1dff:fef6:7ff9.1310 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: . [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5546370 8620681> (len 32, hlim 64)
> 00:37:10.547821 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5547149 8619797> (len 32, hlim 64)
> 00:38:14.548802 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5553549 8619797> (len 32, hlim 64)
> 00:39:18.549774 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5559949 8619797> (len 32, hlim 64)
> 00:40:22.550736 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5566349 8619797> (len 32, hlim 64)
> 00:41:26.551704 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5572749 8619797> (len 32, hlim 64)
> 00:42:30.552678 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: F [tcp sum ok] 1:1(0) ack 1 win 58548 <nop,nop,timestamp 5579149 8619797> (len 32, hlim 64)
> 00:43:34.553613 2001:610:508:1001:260:1dff:fef6:7ff9.1308 > 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea.21: R [tcp sum ok] 2:2(0) ack 1 win 58548 (len 20, hlim 64)
>
> Several people have informed me that they can reach ftp.netbsd.org over
> IPv6.
>
> I am thinking about a routing problem from ftp.netbsd.org towards me,
> but on the other hand the tcpdump above shows I do get one packet from
> ftp.netbsd.org in the handshaking phase.
>
> I tried this on freebsd-stable, netbsd-current and netbsd 1.5.3 with the
> same result.
>
> 'ftp -4 ftp.netbsd.org' is working fine. v6 ftp to other v6 ftp servers
> is also working, so no firewall issues. Traceroute is also working:
> spock$ traceroute6 -q 1 -l  ftp.netbsd.org
> traceroute6 to ftp.netbsd.org (3ffe:8050:201:1860:2a0:c9ff:feed:b7ea) from 2001:610:508:1001:260:1dff:fef6:7ff9, 30 hops max, 12 byte packets
>  1  kirk (2001:610:508:1001:220:afff:fec6:4faa)  3.201 ms
>  2  surrogate.ipv6.surfnet.nl (2001:610:508:1000::1)  7.9 ms
>  3  surfnet-bv.Amsterdam.ipv6.surf.net (2001:610:0:2001::1)  13.627 ms
>  4  PO4-0.CR2.Amsterdam1.surf.net (2001:610:16:3048::49)  16.897 ms
>  5  PO0-0.BR2.Amsterdam1.surf.net (2001:610:16:6004::6)  15.136 ms
>  6  ams-ix.sara.xs4all.net (2001:7f8:1::a500:3265:1)  13.938 ms
>  7  nikhef.ams-ix.ipv6.intouch.net (2001:7f8:1::a500:8954:1)  12.436 ms
>  8  3ffe:1280:1001:1::1 (3ffe:1280:1001:1::1)  382.62 ms
>  9  3ffe:80a::1 (3ffe:80a::1)  203.762 ms
> 10  3ffe:8050:ffff::fffd (3ffe:8050:ffff::fffd)  204.275 ms
> 11  ftp6.netbsd.org (3ffe:8050:201:1860:2a0:c9ff:feed:b7ea)  306.499 ms
>
> Any suggestions what could be wrong here?
>
> 	rvdp
>
> PS This is quite annoying because I have the same problem with
> www.netbsd.org and I use mozilla-1.0.
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